Title:
INSULATING SHEET, BATTERY CELL, BATTERY AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/168545
Kind Code:
A1
Abstract:
Disclosed in the present invention are an insulating sheet, a battery cell, a battery and an electronic device. The insulating sheet is used for the battery cell. The battery cell comprises an electrode assembly, the electrode assembly comprises a first tab, the insulating sheet comprises a first sheet body and a second sheet body, the first sheet body comprises a first wall surface, the second sheet body is connected to the first sheet body, the second sheet body comprises a second wall surface facing the first wall surface, the first wall surface and the second wall surface jointly define a first gap, and the first gap is provided with a first port and a second port, which are distributed opposite each other. The direction from the first port to the second port is a first direction, and the first direction intersects with a direction perpendicular to the first wall surface. Due to the fact that a current collector of the electrode assembly can only come into contact with the wall surface of the first sheet body that is away from the first wall surface, and cannot come into contact with the portion of the first tab that is located between the first sheet body and the second sheet body, it is difficult for the first tab to come into contact with a current collector with a different polarity and thus cause a short circuit, therefore the safety performance of the battery cell is improved.
Inventors:
YU JING (CN)
WANG XINLEI (CN)
WANG XINLEI (CN)
Application Number:
PCT/CN2022/079460
Publication Date:
September 14, 2023
Filing Date:
March 07, 2022
Export Citation:
Assignee:
NINGDE AMPEREX TECHNOLOGY LTD (CN)
International Classes:
H01M50/50
Foreign References:
| CN206250229U | 2017-06-13 | |||
| CN214378547U | 2021-10-08 | |||
| CN207938703U | 2018-10-02 | |||
| CN206619640U | 2017-11-07 | |||
| JP2020047502A | 2020-03-26 | |||
| JP2016012542A | 2016-01-21 |
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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